baber/WOPTO huggingface dataset:
Patent GB-1427785-A (GB)
Title: Amino-acid resolution
IPC: C07C233/47
Filed: 1973-09-14
Abstract: 1427785 Levo-erythro-ethenamine D-(-)-2- acetylamino - 2 - 4 - (acetoxyphenyl)acetate; amino-acid resolution BRISTOL-MYERS CO 14 Sept 1973 [15 Sept 1972] 43232/73 Head- C2C The invention comprises the compound (I) levo - erythro - ephenamine - D - (-) - 2 - acetylamino - 2 - (4 - acetoxyphenyl) acetate. It may be prepared by reacting racemic 2-acetylamino-2-(4-acetoxyphenyl)acetic acid with levoerythro-ephenamine by dissolving the reactants in a suitable solvent and recovering the desired compound from solution. The compound may be reacted with a strong base to give the free base levo-erythro-ephenamine and D- (-) - N - acetyl - 2 - (4 - acetoxyphenyl) - glycine which may be reacted with a strong acid to give the corresponding acid addition salt of D- (-)- 2 - amino - 2 - (4 - hydroxy - phenyl)acetic acid which can be converted to the free acid by treatment with an alkali. Racemic 2-amino-2-(4- hydroxyphenyl)acetic acid may be resolved into its levo-rotatory isomer by acetylating the racemic acid to form racemic 2-acetylamino-2- (4-acetoxyphenyl) acetic acid, reacting the acetylated acid with levo-erythro-ephenamine solution, recovering the compound of Formula (I) above, reacting this with a strong base, removing the levo-erythro-ephenamine released, reacting the residual D-(-)-N-acetyl-2-(4-acetoxyphenol)glycine with a strong acid to provide the corresponding addition salt of D-(-)-2- amino - 2 - (4 - hydroxyphenyl)acetic acid and treating this in an alkaline medium to release the desired levo-rotatory isomer.
Patent GB-905776-A (GB)
Title: New organopolysiloxane copolymers and compositions containing them for treating glass surfaces
IPC: C03C17/30
Filed: 1959-12-22
Abstract: An alkoxylated siloxane copolymer consisting essentially of (a) 20 to 50% (by weight) of units of the general formula <FORM:0905776/IV(a)/1> (b) 20 to 50% of units of the formula <FORM:0905776/IV(a)/2> and (c) 10 to 40% of units of the formula <FORM:0905776/IV(a)/3> wherein each R is an alkyl radical, each R1 is an alkyl radical of 1 to 6 C atoms, each R2 is an unsaturated monovalent aliphatic or cycloaliphatic hydrocarbon radical, R3 is H or an acyl radical of a monobasic aliphatic acid of p  1 to 6 C atoms, R4 is a divalent hydrocarbon radical, and in the copolymer n and m have an average value of from 1 to 2, n has an average value of from 0 to 1 and x has an average value of from 0,5 to 1,5, may be made by alcoholysis followed by hydrolysis and condensation of the corresponding silanes.  The copolymers can be dissolved in organic solvents, emulsified in water and dissolved in minor proportions in water and the resulting liquids can be heated with catalytic amounts of boric acid to yield clear solutions which form tack-free films at temperatures below 100 DEG C. after evaporation of the solvent or water.  In a typical example (1) ethanol was added to a benzene-ethyl acetate solution of CH2=CH.SiCl3, CH3.COOCH2.SiCl3 and (CH3)2SiCl2, with subsequent cooling and addition of water thereto; the solvent layer was separated and purified to yield a colourless oil which was then dissolved in toluene and refluxed with boric acid to give a solution suitable for treating glass.  Uses: For treating glass plates, fibres or containers prior to coating with polyester resins.
Patent GB-1087688-A (GB)
Title: Improved method of semiconductor die soldering
Inventor: BECKETT LEONARD THOMAS ALEX AN
IPC: H01L21/60
Filed: 1966-09-30
Abstract: 1,087,688. Soldering. STANDARD TELEPHONES & CABLES Ltd. Sept. 30, 1966, No. 43822/66. Heading B3R. [Also in Division H1] A semi-conductor chip is soldered to a backing plate by forming a small hole in the plate, placing a solder preform in intimate contact with the plate so as to completely cover the hole, placing the chip in intimate contact with the preform so that the latter is completely covered, and heating the assembly to melt the solder whilst at the same time applying pressure between the chip and the plate, whereupon excess solder is drawn by capillary action into the hole. The hole may be blind or extend through the plate, which preferably constitutes a heat sink.
Patent GB-1243682-A (GB)
Title: Improvements in or relating to support structures
Inventor: REIMANN OTTO
IPC: E02D7/16
Filed: 1968-09-16
Abstract: 1,243,682. Pile driving. O. REIMANN. 16 Sept., 1968, No. 43909/68. Heading E1H. A structure comprises a base (e.g. a walking frame 23, 24 or a wheeled base) carrying a framework 21 (e.g. providing a track for a hammer 21a) the framework being raisable from a horizontal transport position to a vertical or inclined operating position, in which it is supported 'by two individual support stays each comprising portions 22a, 22b connected by lockable offset hinges, 31, each support stay being rotatable about its longitudinal axis. The support stays 22 may be adjustable in length by screwed ends 28a, 28b and may be mounted at their lower ends to pistons slidable along and rotatable about transverse axes in cylinders 26a, 26b. The framework 21 may be inclined by making the stays 22 "kneel", the portions 22b lying along the ground. The framework may also be foldable for transport.
Patent GB-1411264-A (GB)
Title: Process for manufacturing an activated carbon
IPC: C01B31/12
Filed: 1972-09-22
Abstract: 1411264 Activated carbon NIHON JESCOAL INDUSTRY CO Ltd and KOHJIN CO Ltd 22 Sept 1972 [23 Sept 1971] 43932/72 Heading C1A A process for making activated carbon comprises putting an organic material, e.g. a sheet 2, on a plate 1, putting a mixture of carbonaceous raw material 3, e.g. bagasse of sugar, blood and flesh residues, bones, cereals, coffee beans, coals, coconut shells, corncobs, cottonseed hulls, distillery waste, fish, fruit pits, kelp, lampblack, lignin, lignite, molasses, nutshells, peat, petroleum acid sludge, petroleum coke, potassium ferrocyanide residues, pulp mill waste, sawdust and wood, and an activation chemical material in the form of boric acid, Ca(OH) 2 , CaCl 2 , calcium phosphate, Cl 2 , cyanides, dolomite, FeCl 3 , MnCl 2 , MnO 2 , MnSO 4 , HNO 3 , H 3 PO 4 , K 2 CO 3 , K 2 S, potassium thiocyanate, NaOH, sodium phosphate, Na 2 SO 4 , S, SO 2 , H 2 SO 4  or ZnCl 2 , the organic material being so disposed as to prevent activation material which seeps out of the mixture from contacting plate 1 and heating the mixture together with the organic material for activation, suitably at 400‹ to 500‹ C. The organic material may be polyvinyl chloride, regenerated cellulose in sheet form, paper, sawdust or wood flour and is readily carbonizable so that no material is wasted. The activation material and the carbonaceous material may be mixed in hopper 8.
Patent GB-1062758-A (GB)
Title: Internal combustion engine ignition mechanisms
IPC: F02P7/06
Filed: 1963-11-07
Abstract: 1,062,758. Ignition systems. GENERAL MOTORS CORPORATION. Nov. 7, 1963 [Nov. 14, 1962], No. 43975/63. Addition to 962, 770. Heading F1B. Also in Division H2] The internal combustion engine ignition mechanism disclosed in Figs. 7-9 of the parent Specification has a modified construction of pulse generator which eliminates the need for two pole pieces by using the timer plate as part of the magnetic circuit. Mounted on timer plate 30 is annular magnet 36 and annular coil 40 wound on bobbin 42a which fits securely within the magnet On the upper edge of magnet 30 is secured a laminated pole piece 32 with radially inwardly extending pole teeth to co-operate with complementary teeth on rotor 64 of magnetic material. Rotor 64 is brazed to bush 62 of magnetic material and is journalled on bearing bush 16 and driven through a centrifugal advance mechanism so that its angular position relative to the shaft can alter with engine speed. A distributor rotor is mounted from the upper end of bush 62 to co-operate with contacts in plastics cap 88. The timer plate is connected to a vacuum unit for movement relative to base 10.
Patent GB-1370299-A (GB)
Title: Tracker plates for use with profile stitching machines
IPC: D05B39/00
Filed: 1971-12-16
Abstract: 1370299 Clamps for workpieces SEWFOR MATIC Ltd 16 Dec 1971 [16 Sept 1970] 44227/70 Heading D1G In a work holding template for a profile stitching machine and comprising upper and lower planar members hinged together at 3 and each having a needle slot 16, each member comprises two parts 4, 5 which may be moved apart and an insert 17, 18 which interengages with the parts 4, 5 to adjust the size of the template. As shown the parts 4, 5 and insert 17, 18 have interengaging tongues and grooves which when assembled provide a slot 25 interconnecting the parts of the needle slot 16 and the part 4 has two cylindrical members through which pass parallel rod-like extensions 12, 13 of parts 10, 11 secured to the part 5. The insert parts 17, 18 have semi-cylindrical members 19, 20 for engaging the extensions 12, 13. Upstanding guide members 38, 39 are provided for alignment with respect to a profile stitching machine.
Patent GB-1354711-A (GB)
Title: Adjustable connecting member for inclusion in the linkage between a shedding mechanism and a heald frame
IPC: D03C1/14
Filed: 1971-09-22
Abstract: 1354711 Shedding motions STAUBLI Ltd 22 Sept 1971 [25 Sept 1970] 44282/71 Heading D1E An adjustable link 5 between a dobby shedding lever 4 and a heald frame 2 provides for adjustment of both lift and height of the frame. The lift adjustment is obtained by moving the link 5 along the lever 4 and locking it in position thereon by one or more slots 16 and screws 14. The height adjustment is attained by moving the pivot 7 of the connecting rod 3 transversely of the link and locking the pivot in position by means of a screw 18 acting on serrated portions 19 of the link and pivot arms 13 which embrace the shedding lever 4. Tilting of the arms 13 by the screw 18 also locks the mounting 17 of the pivot 7 in its slot 9. The serrated portions 19 may be on the mounting 17 and in the slot 9 (Fig. 4, not shown), the height adjustment may be effected by a turn buckle (Fig. 5, not shown) or by a set screw acting on the end of the arms 13 (Fig. 8, not shown).
Patent GB-1368984-A (GB)
Title: Yarn dual twister and doubler
IPC: D02G1/02
Filed: 1971-09-21
Abstract: 1368984 Alternately twisted yarn J V WORTHINGTON 21 Sept 1971 44299/71 Headings DID D1F and DIJ Yarn having portions of alternate directions of twist is made by false twisting a yarn alternately in one direction and then the other direction, each reversal of direction of false twist being effective before a steady state false twisting condition is achieved, and concurrently advancing the yarn in the alternately twisted state. As shown, three yarns are fed via stop motion eyes 13 to false twister 30 mounted on traversing plate 60, and then wound on drumdriven package 41. The direction of rotation of the false twister 30 is reversed by geardriven electric control drum 45, e.g. 2 reversals of twist for each traverse. The yarn can be heated during or after twisting and cording. The false twister 30 may comprise an electric motor 30 with a hollow rotor mounted on a plate 60 which is pivoted on traversing rod 20. The plate 60 may be releasably coupled to the traversing rod 20 so that its reciprocation may be arrested for piecing up procedure. The pivoting of the plate 60 may disengage electrical sliding contacts which supply power to the false twisting motor 30, see Figs. 3 and 4 not shown.
Patent GB-1403404-A (GB)
Title: Polyamides suitable for use as adhesives
IPC: C08G69/26
Filed: 1972-09-26
Abstract: 1403404 Polyamides SCHERING AG 26 Sept 1972 [28 Sept 1971] 44464/72 Heading C3R [Also in Division B5] Polyamides comprise (a) structural units derivable from heptadecane-1,8-and/or -1,9- dicarboxylic acid and (b) structural units derivable from a heterocyclic amine B-N = A = N-H where A is B is H or H 2 NX-; X is C 1-6  alkylene; R 2  is C 1-8  alkylene; R 3  is C 2-12  alkylene; and each R independently is H or C 1-4  alkyl. They may also contain units of a C 2-12  aliphatic or up to C 10  cycloaliphatic, aromatic or araliphatic dicarboxylic acid and/or a C 2-10  aliphatic, cycloaliphatic, aromatic or araliphatic diamine. In Examples a heptadecane dicarboxylic acid isomer mixture plus azeloic or sebacic acid is condensed with less than an equivalent amount of piperazine, 1,3-di-(4-piperidyl)propane or 1,2-di-(4-piperazyl) ethane in the presence of triphenylphosphite and the product subsequently condensed with the balance to equivalence of ethylene diamine. Reference is made to Specifications 1,227,858; 1,175,458; 1,027,211; 904,543; 845,573; and 811,696. Uses.-The polyamides are useful as hot melt adhesives especially for adhering plasticized PVC surfaces to themselves or other surfaces They may be applied to one or both surfaces.
Patent GB-1353378-A (GB)
Title: Fibre distribution apparatus
IPC: D01G23/08
Filed: 1971-09-24
Abstract: 1353378 Distribution of fibres to machines CROMPTON & KNOWLES CORP 24 Sept 1971 [25 Sept 1970] 44678/71 Heading D1N An apparatus to selectively distribute and supply fibres to a plurality of processing machines 22a, 22b, 22c and 22d, Fig. 1, comprises a source 20 of fibre a conduit 24 connected to the source and branching into feed ducts 26 to each machine 22a &c. A fan 28 blows air down conduit 24 which may be selectively connected to the fibre source or to atmosphere by a flap valve 45, Fig. 3, operated by a pneumatic cylinder 48 and a solenoid. Gate valves 50 selectively close conduit 24 after each feed duct 26 and also selectively close feed ducts 26, Fig. 2 (not shown), Each feed duct 26 has a photoelectric sensor to register its need for fibre and the whole apparatus is controlled by the circuit of Fig. 4 to alternately deliver fibre to each machine in turn and purge the conduit in a timed sequence. Control Circuit, Fig. 4, the control circuit is activated by switch 84 which operates a timing motor 86. Timing motor 86 sequentially operates switches 94a &c which activate a relay 98 if fibre sensing photosensors 76a &c show a need of fibre in the relevant feed duct. If fibre is needed relay 98 latches in by contacts 99a &c and operates contacts 100 to activate a clutch 102 of the feeding rolls 42 of the device of Fig. 3. Simultaneously the appropriate gate valves are operated by switches 106a &c also driven by motor 86. When the relay 98 is deactivated solenoid 103 is also deactivated to open flap valve 45, Fig. 3, to atmosphere and hence purge the conduit between fibre delivery periods. Individual machines may be isolated by switches 90a &c and 92a &c. Fibre Metering Mechanism, Fig. 3. This comprises a fibre feed duct 32 depositing fibre in an upper chamber 36 from which they are metered by rolls 42 to a beater 44 and hence a lower chamber 38. From here they enter conduit 24 via flap valve 45. General. Delivery of fibre from ducts 26 to each machine is via an "evener motion" Fig. 5 (not shown) comprising a chute formed by screens (68) leading to feed rolls (66), air escapes through the screens (68) and the fibre level is sensed by a photocell (76). A number of systems as shown in Fig. 1 may be combined to form a system as shown in Fig. 9. Here two fibre sources feed three sets of machines X, Y and Z. The middle set Y may be fed by either source, individual machines in this set being set to take fibres from either source by means of preset gauged rotary selector switches in the circuit illustrated in Figs. 11A and 11B (not shown). Fig. 6 (not shown) illustrates a further possible arrangement of  machines with the corresponding circuit in Fig. 8 (not shown). Reference is made to Specifications No. 1353379 and 1353380.
Patent GB-1496651-A (GB)
Title: Connectors
IPC: F16B7/04
Filed: 1974-12-17
Abstract: 1496651 Stud and socket connector OMK DESIGN Ltd 17 Dec 1974 [24 Sept 1973] 44719/73 Heading E2B A pair of connector elements are mountable on a pair of elongate members e.g. parallel parts 4, 9, Fig. 3 of chain frames A. B, one element comprising a female part 3 having a pair of spaced lugs 5, each having an inwardly facing projection 6, the other element comprising a male part 8 having a boss 10 having on its outer faces slots 11 cooperating with projections 6 to retain the elements releasably together by sliding engagement and subsequent relative rotation in the plane of sliding. As shown, the slots have one straight side 12 and one arcuate side 13, inclined so that chain B must be tilted relative to chain A to engage projection 6 in slot 11, the projection 6 rotating in arcuate part 13 of slot 11 on release of chain B.
Patent GB-1396565-A (GB)
Title: Drying containers
IPC: F26B23/02
Filed: 1972-09-29
Abstract: 1396565 Drying containers BRITISH OXYGEN CO Ltd 26 Sept 1973 [29 Sept 1972] 45106/72 Heading F4G  A method of reducing the moisture content of a container 48, such as a gas cylinder, consists in introducing a probe 46 into the container and admitting gas through the probe and allowing it to escape through an outlet in the container, at least part of the gas being the hot combustion products of reaction between a fuel and an oxygen-containing gas. In the embodiment shown in which combustion takes place external to the container air is initially introduced via an inlet 40 of a burner and passes through a mixing chamber 41, combustion chamber 44 and probe 46. Fuel gas is also added and is ignited in the combustion chamber 44 by a spark produced by a starter unit 47 electrically linked to a rod 43 and a terminal 45 on the probe. In an alternative burner construction, Fig. 1 (not shown) the fuel is combusted inside the container. The probe may be inserted into the container by a distance at least half the longitudinal length of the container and the latter may be rotated. Air or nitrogen may be introduced after the combustion to remove traces of moisture or fuel introduced during combustion or may be introduced prior to combustion. The fuel may be butane, propane or natural gas and an excess of oxygen-containing air over that required for complete combustion may be employed.
Patent GB-1485854-A (GB)
Title: Circuit breaker with ambient temperature compensation
IPC: H01H73/30
Filed: 1974-10-18
Abstract: 1485854 Automatic circuit-breakers RCA CORPORATION 18 Oct 1974 [23 Oct 1973] 45192/74 Heading H1N An electric circuit breaker with a bimetal latch release has an ambient temperature compensating bimetal which provides that the relationship of the latch and release bimetal remain substantially unchanged during changes of ambient temperature. In Fig. la the compensating bimetal 33 is seam welded to the current carrying bimetal 23 and when the ambient temperature changes maintains the latch end 100 or a retainer 34 secured to the end of a contact spring 25. In Fig. 2a the compensating bimetal 63 is mounted between a block 66 on the contact spring 55 and a retainer 64 normally latched by the current carrying bimetal 53.
Patent GB-950900-A (GB)
Title: Process for the preparation of thiophene-2,5-dicarboxylic acid
IPC: C07D/
Filed: 1961-12-18
Abstract: Thiophene-2:5-dicarboxylic acid is prepared by reacting an alkali or alkaline earth metal salt of a :a 1-dichloroadipic acid with an alkali metal sulphide in an aqueous medium, converting the resulting salt of tetrahydrothiophene-2:5-dicarboxylic acid to the free acid, chlorinating with molecular chlorine in an acidic medium, and dehydrochlorinating by heat.  Specification 934,292 is referred to.
Patent GB-1181268-A (GB)
Title: 6-Amino-Uracil-5-Carbonamido-N-sulphonamides and Process for Their Preparation
IPC: C07D239/557
Filed: 1967-10-05
Abstract: 1,181,268. 6 - Amino - uracils. FARBWERKE HOECHST A.G. 5 Oct., 1967 [5 Oct.. 1966], No. 45491/67. Heading C2C. Novel compounds (I) (including salts thereof) wherein R 1  and R 2  may be the same or different and each represents a saturated or unsaturated aliphatic hydrocarbon radical containing 1 to 4 carbons or a cycloaliphatic or aromatic radical or an alkyl radical substituted by one or more heterocyclic or aromatic groups and R 3  and R 4  may be the same or different and each represents a hydrogen atom or an alkyl group containing 1 to 4 carbons, are prepared by reacting N-carbonylsulphamic acid chloride, O = C = N-SO 2 Cl, with a 6-amino-R 1 ,R 2 -substituted uracil and subsequently reacting the intermediate 6 - amino - R 1 ,R 2  - uracil - 5 - carbonamido-N-sulphochloride (i.e. the group -CONH. SO 2 Cl at the 5-position) so obtained with ammonia or the appropriate amine, HNR 3 R 4 . Pharmaceutical preparations having diuretic and carboanhydrase-inhibiting properties contain as active ingredient compounds (I); administration may be orally or parenterally.
Patent GB-1211342-A (GB)
Title: Artificial satellites
Inventor: DAWSON THOMAS WILLIAM GRANT
IPC: H01Q15/00
Filed: 1965-10-28
Abstract: 1,211,342. Radio reflectors. MINISTER OF TECHNOLOGY. 5 Jan., 1967 [28 Oct., 1965], No. 45765/65. Heading H4A. In a passive radio communication satellite, alternate lengths of the filaments of a net structure are metal coated to form dipoles. The metal may be aluminium or silver and the net may be either a polyamide, polyester or glass fibre. To protect the net from ultra-violet radiation it is coated, between the dipoles, with metal to a depth smaller than that at the dipoles; radio wave reflection at these lengths is negligible. The net is unfolded in space by the pressure of solar radiation in the gravitational gradient of the Earth, which causes different parts of the net to have different orbital periods.
Patent GB-960344-A (GB)
Title: Chuck construction
IPC: B23B31/16
Filed: 1962-12-05
Abstract: 960,344. Machine tool details. BUCK TOOL CO. Dec. 5, 1962 [April 4, 1962], No. 46002/62. Heading B3B. A chuck jaw assembly &c. comprises a slotted base 19, a member 15 extending through the slot and having rails 47, 48 extending into grooves in the base, the rails and grooves having adjacent surfaces converging in a direction toward the centre of the slot and away from the outer end of the slot. The chunk is as described in Specification 930,177 with the exception of, firstly, the guiding surfaces 106, 108, 107, 109 of the chuck jaw-carrying member 15 which tend to pull the sides 27, 28 of the base 19 together when the jaw is clamped; and, secondly, of the spring-pressed pin 64 which locates the adjusting worm 46.